Launching today
ScenarioMock
Stateful Mock API server you can share with a single URL
6 followers
Stateful Mock API server you can share with a single URL
6 followers
ScenarioMock lets you build mock API servers that actually behave like real ones. POST /users creates a resource. GET /users/:id retrieves it. DELETE returns 404. Return 500 on the 3rd request. Return 401 without an Authorization header. Set up these behaviors in a GUI — no code needed. Share the URL and your team can test immediately, no auth required.
Hey Product Hunt! 👋 I'm Yoshi, the maker of ScenarioMock.
I built this because I kept running into the same frustration: existing mock tools return fixed responses. Real APIs have state. When I POST /users, I expect GET /users/:id to return that user. When I hit a rate limit on the 3rd request, I expect a 429. Mocking these flows was always painful — until now.
What ScenarioMock does differently:
🗄️ Stateful Mock — Resources created with POST can be retrieved with GET. DELETE returns 404. It behaves like a real database-backed API, powered by Redis.
🎭 Scenario Engine — Set dynamic behaviors without writing code:
- Sequence: "Return 200 on the 1st call, 429 on the 2nd, 200 again from the 3rd"
- Conditional: "Return 401 if the Authorization header is missing"
- Stateful Collection: Full CRUD mock in one config
🔗 Shared URL — Make your project public and share the URL. Anyone can view the endpoint list and send requests directly in the browser — no account needed.
Here's a live example you can try right now, no signup required: https://scenariomock.com/shared/demo-mock--ecommerce-api
And for mobile API testing, I also have a companion Android app: [API Tester – REST & JSON Client](https://play.google.com/store/apps/details?id=com.toolbox.m.mobile_api_tester). Build the mock on ScenarioMock, fire requests from your phone.
I'd love to hear what you think — feedback on which scenario type you'd use most, or features you wish mock tools had. Happy to answer any questions below! 🙏
Quick update — a few people asked "can I try it before signing up?"
Yes! Here's a live shared project you can poke at right now, no account needed:
https://scenariomock.com/shared/demo-mock--ecommerce-api
It's a mock e-commerce API with stateful CRUD (POST creates a product, GET
retrieves it, DELETE removes it) plus a couple of Sequence/Conditional
scenarios wired up. Try hitting the endpoints directly from the page and let
me know what you think 🙏
Hi everyone! Thank you all so much for the amazing support and Upvotes today! 🙏
We just launched ScenarioMock to help API learning and development.
Please feel free to drop any questions or feedback in the comments.
We'd love to hear from you!